1. Morris' Human Anatomy;Anson,1966
2. Compendium of Human Anatomic Variation;Bergman,1988
3. Factors affecting the incidence of non-metrical skeletal varients;Berry;J Anat,1975
4. Neural blockade for ophthalmologic surgery;Boberg,1980
5. Sicher and DuBrul's Oral Anatomy;DuBrul,1988